Fender extension of a truck vehicle



FIG. 1 is a FRONT LEFT view of a fender extension of a truck vehicle showing our new design;

FIG. 2 is a TOP view thereof;

FIG. 3 is a FRONT view thereof; and,

FIG. 4 is a LEFT view thereof. 

The ornamental design for a fender extension of a truck vehicle, as shown and described. 